CN2244967Y

CN2244967Y - Eccentric swinging plunger sprayer

Info

Publication number: CN2244967Y
Application number: CN 95234328
Authority: CN
Inventors: 张大雷
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-20
Filing date: 1995-07-20
Publication date: 1997-01-15
Anticipated expiration: 2005-07-20

Abstract

The utility model discloses an eccentric swinging plunger type sprayer. The utility model is composed of an eccentric wheel, a belt wheel, a sliding guide shaft, plungers, a return spring, sealing rings, cylinder bodies, an air guiding tube, a six-way joint, an air chamber and a pressure adjustment relief valve. A power machine drives the eccentric wheel through the belt wheel and is matched with the sliding guide shaft and the return spring to drive two symmetrically arranged plunger pumps on both sides of the eccentric wheel to work, and the two sealing rings are arranged between the plungers in the cylinder bodies and the internal wall of the cylinder bodies. The cylinder bodies on both sides are both communicated with the six-way joint through the air guiding pipe and the air chamber and the pressure adjustment relief valve are arranged on the six-way joint. The pressure adjustment relief valve is composed of a valve body, a valve ball, a small plunger, a pressure adjusting spring and a pressure adjusting screw bolt and an O-shaped sealing ring is arranged on the small plunger.

Description

Eccentric swing plunger type sprayer

The utility model relates to power driven sprayer, relates in particular to the eccentric swing plunger type sprayer of high pressure low discharge.

Now, woods orchard worker industry and building trade use mostly be manual sprayer-slide, artificial hand push-and-pull plunger pump rod pressurizes plunger displacement pump, and labour intensity is big, inefficiency, pressure transient, subject matter is that existing plunger displacement pump adopts pump inner piston rod and piston in cylinder wall to seal movingly, and fit clearance is little, so frictional force is big, power consumption is big.Especially existing sprayer-slide consumable accessory is many, and the accuracy of manufacture requires high, so production cost is also higher.

The purpose of this utility model is, overcomes the deficiencies in the prior art part, provides a kind of simple and compact for structure, is power with the minitype motivation machine, is suitable for mobile operating, and flow is little and eccentric swing plunger type sprayer that pressure is big.

Eccentric swing plunger type sprayer described in the utility model, belt pulley is arranged, eccentric wheel, bearing block, the slip guide shaft, the guide shaft seat, plunger, back-moving spring, sealing ring, cylinder body, wireway, six pass joints, water out adapter, backwater joint, air chamber, pressure adjustment relief valve, regulator bolts, pressure spring, the O RunddichtringO, small plunger, valve ball, overflow adapter, go out water one-way valve, the water inlet check valve, water supply connector and base are formed, two cylinders about described plunger displacement pump has, two symmetrically arranged plunger displacement pumps are combined into the mechanism of an interlock about having in other words conj.or perhaps, about between two symmetrically arranged plunger displacement pumps, the eccentric wheel that has belt pulley to drive cooperates back-moving spring to make plunger displacement pump work.In order to narrate conveniently two cylinders about we call two plunger displacement pumps that are symmetrical set.Belt pulley drives Pulley shaft and rotates, the eccentric wheel that Pulley shaft then drives axle head rotates, two slip guide shafts that promotion is symmetrical set are reciprocating, the slip guide shaft is arranged on the guide shaft seat, under the mating reaction of the elastic force of eccentric wheel rotatory force and back-moving spring, promote to be inserted in plunger work done in the cylinder body by the slip guide shaft.For guaranteeing the stable of Pulley shaft, in bearing block, be provided with the twice bearings.In order to guarantee plunger in the cylinder body and the excellent sealing between the cylinder body, be provided with the two seals circle at cylinder body inner cylinder body inwall and the contacted position of plunger.The cylinder body on both sides is all connected six pass joints by wireway, and air chamber and pressure adjustment relief valve are installed on six pass joints.Be equipped with back-moving spring on the slip guide shaft, when eccentric wheel promotes the slip guide shaft, when promoting left cylinder plunger and make compression movement by the slip guide shaft again, compression reseting spring, when the compression movement of left side cylinder finished, the eccentric wheel that drives at back-moving spring and engine promoted right cylinder plunger and does under the double action of compression movement, and left cylinder plunger is done return motion, spring reset, water supply connector and water inlet check valve are finished the suction motion simultaneously.Produce negative pressure in the right cylinder, liquid for jetting enters in the cylinder body by the water inlet check valve under atmospheric action, and when plunger was finished a stroke and done return motion, liquid for jetting entered air chamber by check valve.About plungers in two cylinders make the reverse motions of symmetry, liquid for jetting will constantly be pressed into air chamber, produces the liquid for jetting of high pressure, through water out adapter, flexible pipe and nozzle ejection.If at this moment the flexible pipe internal pressure is excessive, extraordinary pressure will be pushed the valve ball of pressure adjustment relief valve open, makes part superpressure liquid for jetting flow into return pipe from the ball limit.Described pressure adjustment relief valve is made up of valve body, valve ball, small plunger, pressure spring, regulator bolts.Be small plunger above the valve ball, with the sealing of O RunddichtringO, block liquid and can not flow into spring housing on the small plunger, in order to avoid spring is produced corrosiveness.For regulating spring pressure, be provided with special-purpose regulator bolts.Regulator bolts is pushed down pressure spring with spiral form, and pressure spring is pushed down small plunger again, and small plunger is pushed down valve ball again.In order to guarantee that liquid that can not enters spring housing around small plunger, small plunger is provided with twice O RunddichtringO up and down.The effect of pressure adjustment relief valve is, when the pressure of liquid for jetting surpasses the force value that allows, plays the effect of insurance, makes expulsion pressure keep stable.

Use eccentric swing plunger type sprayer technology described in the utility model, when using 0.5 kilowatt of motor to be used as power, be equivalent to 20% to 30% of existing motor-driven crankshaft linkage formula sprayer power requirement, and efficient is big to equating.Compare with the plunger displacement pump sprayer of prior art, the eccentric swing plunger type sprayer accuracy of manufacture described in the utility model requires low, production cost is little, be easy to produce and assembling, the plunger of eccentric swing plunger type sprayer especially described in the utility model and the fit form of inboard wall of cylinder block and the version of overflow valve, make power driven sprayer of the present utility model obviously laborsaving, excellent in efficiency, the industry that is fit to the big pressure low discharge of all needs power driven sprayer is used.

Accompanying drawing 1 is the structural representation of eccentric swing plunger type sprayer described in the utility model.Accompanying drawing 2 is structural representations of the pressure adjustment relief valve of eccentric swing plunger type sprayer described in the utility model.

1-eccentric wheel, 2-belt pulley, 3-bearing block, 4-slip guide shaft

5-plunger, 6-back-moving spring, 7-sealing ring, 8-cylinder body

9-wireway, 10-six pass joints, 11-water out adapter, 12-backwater joint

13-air chamber, 14-regulator bolts, 15-pressure adjustment relief valve, 16-pressure spring

17-O RunddichtringO, 18-small plunger, 19-valve ball, 20-overflow adapter

21-go out water one-way valve 22-water inlet check valve 23-water supply connector 24-underframe

Referring now to accompanying drawing 1 and accompanying drawing 2, be described as follows in conjunction with the embodiments: underframe (24) should guarantee support strength as the support member of eccentric swing plunger type sprayer described in the utility model, generally gets final product with hollow ironcasting.Axle head at Pulley shaft is provided with belt pulley (2), accepts the power of being sent here by engine.In bearing block (3), be provided with the twice spring bearing, make Pulley shaft be positioned on the bearing block (3) with double-positioning bearing, the other end in Pulley shaft and belt pulley (2) symmetry, be provided with eccentric wheel (1), two the slip guide shafts (4) that are arranged on the guide shaft seat are symmetrical arranged, contact with eccentric wheel (1) on the Pulley shaft with form movingly, be equipped with back-moving spring (6) on the slip guide shaft (4).The rotation of eccentric wheel (1), i.e. circulation promotes symmetrically arranged slip guide shaft (4), and then promotes the plunger (5) in the cylinder body (8), makes plunger (5) reciprocating under the double action of the elastic force of back-moving spring (6) and eccentric wheel (1) driving force.In order to guarantee the plunger (5) and the excellent sealing between the cylinder body (8) in the cylinder body (8), in cylinder body (8) and the contacted position of plunger (5) be provided with two seals circle (7).The cylinder body on both sides (8) all passes through wireway (9) and connects six pass joints (10), and air chamber (13) and pressure adjustment relief valve (15) are installed on six pass joints (10).The citation form of air chamber (13) and the plunger air chamber of pump of effect and prior art are roughly the same, water supply connector (23), water out adapter (11) and backwater joint (12) are installed on the air chamber (13), its installation form and effect are also basic identical with water supply connector, water out adapter and the backwater joint of the plunger displacement pump of prior art, just in water supply connector (23), be provided with into water check valve (28), in water out adapter (11), be provided with out water one-way valve (27).Described pressure adjustment relief valve (15) has valve body, regulator bolts (14), pressure spring (16), O RunddichtringO (17), small plunger (18), valve ball (19) and overflow adapter (20) to form, the valve body form of valve body and prior art overflow valve is basic identical, be interior empty part, regulator bolts (14) is set in the upper end of valve body, by the pressure of pressure spring (16) and small plunger (18) adjusting, can adjust needed oil pressure relief with spiral form to valve ball (19).In order to guarantee to be unlikely to enter spring housing's corrosion pressure spring (16) around small plunger by the liquid of overflow, small plunger (18) is provided with twice O RunddichtringO (17).The partially liq that flows out by pressure adjustment relief valve (15) is through overflow adapter (20) be installed in the water tank of the overflow pipe inflow peripheral hardware on the overflow adapter (20).

Claims

1, a kind of eccentric swing plunger type sprayer, by belt pulley, eccentric wheel, bearing block, slip guide shaft, guide shaft seat, plunger, back-moving spring, sealing ring, cylinder body, wireway, six pass joints, backwater joint, air chamber, pressure adjustment relief valve, regulator bolts, pressure spring, O RunddichtringO, small plunger, valve ball, overflow adapter, go out water one-way valve, water inlet check valve, water supply connector and base and form, be provided with the two seals circle at cylinder body inner cylinder body inwall and the contacted position of plunger, it is characterized in that on the slip guide shaft, being equipped with back-moving spring.

2, eccentric swing plunger type sprayer according to claim 1 is characterized in that the cylinder body on both sides is all connected six pass joints by wireway, and air chamber and pressure adjustment relief valve are installed on six pass joints.

3, eccentric swing plunger type sprayer according to claim 1 and 2, it is characterized in that described pressure adjustment relief valve is made up of valve body, valve ball, small plunger, pressure spring and regulator bolts, regulator bolts is pushed down pressure spring with spiral form, pressure spring is pushed down small plunger again, and small plunger is pushed down valve ball again.

4,, it is characterized in that the small plunger in the pressure adjustment relief valve is provided with the O RunddichtringO according to claim 1 or 3 described eccentric swing plunger type sprayers.